Python® – 1500 Series Control Valve

Python<sup>®</sup> – 1500 Series Control Valve

Product Specifications

Model CV-1500
Fluid Steam, Water
Connection Type RF
Body Material WCB, CF8M
Maximum Allowable Pressure 725 psig (28 barg)
Maximum Allowable Temperature 752°F (400°C)
Drive Mode Pneumatic, Electric
Gland Packing Graphite, PTFE
Body Size 1/2″ (15 mm)
3/4″ (20 mm)
1″ (25 mm)
1-1/4″ (32 mm)
1-1/2″ (40 mm)
2-1/2″ (65 mm)
3″ (80 mm)
4″ (100 mm)

Python® – 1500 Series Control Valve

Control valves are a key component in any pressure or temperature control application. With the increasing cost of fuel, delivering media in the most efficient way increases productivity by delivering the required pressure or temperature while avoiding excessive consumption. Precision control also provides repeatability and safety for any process.


  • Python® 1500 Series  control valves are globe two-way single seated valves that deliver accurate and efficient control for most steam and liquid applications
  • Body has top entry trim and bolted bonnet to enable easy access to all internal parts for in-line inspection, maintenance, and trim replacement
  • Carbon steel and stainless steel material
  • Two pneumatic actuator sizes
  • Pneumatic actuators have been designed with six springs to allow lower hysteresis and higher performance
  • Pneumatic actuators tested to three million cycles
  • Reverse and direct acting actuators that are field reversible
  • Two packings: PTFE chevron seals and graph oil
  • Live spring loaded Teflon packing for long service and less maintenance
  • Parabolic equal percentage trims for accurate control
  • Additional trims are coming soon. Trims such as perforated unbalanced, multi-hole balanced, soft seat Class VI, and micro trims are a few examples.
  • Metal to metal seats rated for Class IV shut off
  • 17-4 PH h900 plugs for long service and better resistance
  • 50:1 rangeability
  • Electric actuators
  • On/Off and modulating characteristics


  • CRN
  • IBR